<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        /*li{
            color: red;
        }
        .one>li{
            color:yellow
        }
        .two,.three{
            color: aqua;
        }*/
        .one:hover{
            color:red;
            font-family: '微软雅黑';
        }
        .two{
            font-family: '宋体';
            font-size: larger;
            font-weight: bolder;
            font-style: italic;
            color: rgb(255,128,255);
        }
    </style>
</head>
<body>
    <!--<ul>
        hello
        <li>大家好</li>
        <li>一</li>
    </ul>-->
    <div class="one">
        这是一个div
    </div>
    <div class="two">这是第二个div</div>

</body>
</html>